Enovix Corporation

Enovix Operations Inc.

Christopher G Castledine

Murali Ramasubramanian

Ashok Lahiri

James D Wilcox

Robert M Spotnitz

Harrold Jones Rust, Iii

Nirav S Shah

Laurie Jane Lauchlan

Brian E Brusca

Gunther A Koblmiller

Robert A Cole

Michael J Armstrong

Christopher J Spindt

Jonathan C Doan

David T Fouchard

Robert M Spotniz

Ken S Matsubayashi

An electrode structure for use in an energy storage device comprising a population of electrodes, a population of counter-electrodes and a microporous separator separating members of the electrode population from members of the counter-electrode population. Each member of the electrode population comprises an electrode active material layer and an electrode current conductor layer, and each member of the electrode population has a bottom, a top, a length L, a width Wand a height H, wherein the ratio of Lto each of Wand His at least 5:1, the ratio of Hto Wis between 0.4:1 and 1000:1, and the electrode current collector layer of each member of the electrode population has a length Lthat is measured in the same direction as and is at least 50% of length L.

Electrode structures for three-dimensional batteries

A method is provided for activating a secondary battery having a negative electrode, a positive electrode, and a microporous separator between the negative and positive electrodes permeated with carrier-ion containing electrolyte, the negative electrode having anodically active silicon or an alloy thereof. The method includes transferring carrier ions from the positive electrode to the negative electrode to at least partially charge the secondary battery, and transferring carrier ions from an auxiliary electrode to the positive electrode, to provide the secondary battery with a positive electrode end of discharge voltage Vand a negative electrode end of discharge so voltage Vwhen the cell is at a predefined Vvalue, the value of Vcorresponding to a voltage at which the state of charge of the positive electrode is at least 95% of its coulombic capacity and Vis at least 0.4 V (vs Li) but less than 0.9 V (vs Li).

Replenished negative electrodes for secondary batteries

A method is provided for activating a secondary battery having a negative electrode, a positive electrode, and a microporous separator between the negative and positive electrodes permeated with carrier-ion containing electrolyte, the negative electrode having anodically active silicon or an alloy thereof. The method includes transferring carrier ions from the positive electrode to the negative electrode to at least partially charge the secondary battery, and transferring carrier ions from an auxiliary electrode to the positive electrode, to provide the secondary battery with a positive electrode end of discharge voltage Vand a negative electrode end of discharge voltage Vwhen the cell is at a predefined Vvalue, the value of Vcorresponding to a voltage at which the state of charge of the positive electrode is at least 95% of its coulombic capacity and Vis at least 0.4 V (vs Li) but less than 0.9 V (vs Li).

A structure for use in an energy storage device, the structure comprising a backbone system extending generally perpendicularly from a reference plane, and a population of microstructured anodically active material layers supported by the lateral surfaces of the backbones, each of the microstructured anodically active material layers having a void volume fraction of at least 0.1 and a thickness of at least 1 micrometer.

Electrode structures

An electrochemical stack comprising carrier ions, an anode comprising an anode active material layer, a cathode comprising a cathode active material layer, a separator between the anode and the cathode comprising a porous dielectric material and a non-aqueous electrolyte, and an ionically permeable conductor layer located between the separator and an electrode active material layer.

Ionically permeable structures for energy storage devices

Microstructured electrode structures

Growing community of inventors

Sunnyvale, CA, United States of America

Christopher G Castledine